From: Akinobu Mita <akinobu.mita@gmail.com> To: linux-kernel@vger.kernel.org Cc: Akinobu Mita <akinobu.mita@gmail.com>, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, linux-ia64@vger.kernel.org Subject: [PATCH] ia64: Use bitmap_weight Date: Sat, 14 Mar 2015 10:12:57 +0900 [thread overview] Message-ID: <1426295577-10836-5-git-send-email-akinobu.mita@gmail.com> (raw) In-Reply-To: <1426295577-10836-1-git-send-email-akinobu.mita@gmail.com> Use bitmap_weight to count the total number of bits set in bitmap. This change just simplifies the code a bit. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org --- arch/ia64/hp/common/sba_iommu.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 344387a..9c944fa 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -33,7 +33,7 @@ #include <linux/acpi.h> #include <linux/efi.h> #include <linux/nodemask.h> -#include <linux/bitops.h> /* hweight64() */ +#include <linux/bitmap.h> /* bitmap_weight() */ #include <linux/crash_dump.h> #include <linux/iommu-helper.h> #include <linux/dma-mapping.h> @@ -1901,8 +1901,7 @@ static int ioc_show(struct seq_file *s, void *v) { struct ioc *ioc = v; - unsigned long *res_ptr = (unsigned long *)ioc->res_map; - int i, used = 0; + int used; seq_printf(s, "Hewlett Packard %s IOC rev %d.%d\n", ioc->name, ((ioc->rev >> 4) & 0xF), (ioc->rev & 0xF)); @@ -1913,8 +1912,8 @@ ioc_show(struct seq_file *s, void *v) seq_printf(s, "IOVA size : %ld MB\n", ((ioc->pdir_size >> 3) * iovp_size)/(1024*1024)); seq_printf(s, "IOVA page size : %ld kb\n", iovp_size/1024); - for (i = 0; i < (ioc->res_size / sizeof(unsigned long)); ++i, ++res_ptr) - used += hweight64(*res_ptr); + used = bitmap_weight((unsigned long *)ioc->res_map, + ioc->res_size * BITS_PER_BYTE); seq_printf(s, "PDIR size : %d entries\n", ioc->pdir_size >> 3); seq_printf(s, "PDIR used : %d entries\n", used); -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Akinobu Mita <akinobu.mita@gmail.com> To: linux-kernel@vger.kernel.org Cc: Akinobu Mita <akinobu.mita@gmail.com>, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, linux-ia64@vger.kernel.org Subject: [PATCH] ia64: Use bitmap_weight Date: Sat, 14 Mar 2015 01:12:57 +0000 [thread overview] Message-ID: <1426295577-10836-5-git-send-email-akinobu.mita@gmail.com> (raw) In-Reply-To: <1426295577-10836-1-git-send-email-akinobu.mita@gmail.com> Use bitmap_weight to count the total number of bits set in bitmap. This change just simplifies the code a bit. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org --- arch/ia64/hp/common/sba_iommu.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 344387a..9c944fa 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -33,7 +33,7 @@ #include <linux/acpi.h> #include <linux/efi.h> #include <linux/nodemask.h> -#include <linux/bitops.h> /* hweight64() */ +#include <linux/bitmap.h> /* bitmap_weight() */ #include <linux/crash_dump.h> #include <linux/iommu-helper.h> #include <linux/dma-mapping.h> @@ -1901,8 +1901,7 @@ static int ioc_show(struct seq_file *s, void *v) { struct ioc *ioc = v; - unsigned long *res_ptr = (unsigned long *)ioc->res_map; - int i, used = 0; + int used; seq_printf(s, "Hewlett Packard %s IOC rev %d.%d\n", ioc->name, ((ioc->rev >> 4) & 0xF), (ioc->rev & 0xF)); @@ -1913,8 +1912,8 @@ ioc_show(struct seq_file *s, void *v) seq_printf(s, "IOVA size : %ld MB\n", ((ioc->pdir_size >> 3) * iovp_size)/(1024*1024)); seq_printf(s, "IOVA page size : %ld kb\n", iovp_size/1024); - for (i = 0; i < (ioc->res_size / sizeof(unsigned long)); ++i, ++res_ptr) - used += hweight64(*res_ptr); + used = bitmap_weight((unsigned long *)ioc->res_map, + ioc->res_size * BITS_PER_BYTE); seq_printf(s, "PDIR size : %d entries\n", ioc->pdir_size >> 3); seq_printf(s, "PDIR used : %d entries\n", used); -- 1.9.1
next prev parent reply other threads:[~2015-03-14 1:13 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-03-14 1:12 [PATCH] hpsa: cleanup bitops usage Akinobu Mita 2015-03-14 1:12 ` [PATCH] cpqarray: simplify bitops usages Akinobu Mita 2015-03-14 1:12 ` [PATCH] pktcdvd: convert char array to bitmap Akinobu Mita 2015-03-14 1:12 ` [PATCH] drbd: use bitmap_weight() Akinobu Mita 2015-03-20 15:14 ` [Drbd-dev] " Lars Ellenberg 2015-03-22 2:11 ` Akinobu Mita 2015-03-14 1:12 ` Akinobu Mita [this message] 2015-03-14 1:12 ` [PATCH] ia64: Use bitmap_weight Akinobu Mita
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1426295577-10836-5-git-send-email-akinobu.mita@gmail.com \ --to=akinobu.mita@gmail.com \ --cc=fenghua.yu@intel.com \ --cc=linux-ia64@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=tony.luck@intel.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.